Consumers how to identify the quality of lamps and lanterns? - (AddTime ： 2013-03-16)

As a consumer, you spent energy, paid for the silver, and finally in the choose and buy 200W led Flood light and lanterns, delighted, also heart is uneasy, I choose the 200W led Flood light and lanterns of what quality?

Today, you worry is reasonable, the lighting industry, is really good and evil people mixed up, the good and bad are intermingled; So, do you have some identification ability is a must! Inspection work for many years I have been engaged in foreign trade 200W led Flood light and lanterns, some advices are given to you here, hope to help you.

A, keep shopping vouchers:
General 200W led Flood light and lanterns has certain after-sales service guarantee, keep shopping vouchers, is you to enjoy the premise condition of consumers' rights and interests, so it is very important. In addition, some 200W led Flood light and lanterns have some consumable, replace or update, then is one of the important reasons you need to keep shopping vouchers.

If buying online, shopping voucher is not available, please at least save the record you are chatting with the owner at the time.

Second, pay attention to the structure safety:
The structural safety of 200W led Flood light and lanterns, generally speaking, consumers' concerns can be put in the following two aspects: 1 parts appear shortage? 200W led Flood light and lanterns of the whole or part of the 200W led Flood light and lanterns will drop down? It is recommended that you according to the following:

1, the demand that the whole lamp assembly:
Shopping if you are a site, generally you can ask the waiter to give you the whole lamp assembly (if the 200W led Flood light and lanterns structure is not very simple), if it is online shopping, it is recommended that you first work after the receipt of the goods is the whole lamp assembly. Its benefits are as follows:

A, you can observe the real appearance of light, and your aesthetic requirements specified?
B, you can find the whole lamp parts whether there is a defect, if there is a shortage?
2, pay attention to the bearing and the load:
If you choose droplight, absorb dome light or wall lamp type, we should pay attention to the security problem of the bearing and the load:

A, the provisions of the state, bearing of itself of 200W led Flood light and lanterns must achieve 200W led Flood light and lanterns is four times the weight for 1 hour.
Weight of 5 kg, for instance, 200W led Flood light and lanterns, you can hang a weight of 15 kg in another pack good 200W led Flood light and lanterns, 1 hour after take off, 200W led Flood light and lanterns must not fall down, and fell there is no safety issues (such as deformation, loose, etc.). With this common sense, you see the goods when can estimate,, of course, how to have a doubt, also can undertake simple test.

B, if you choose and buy is to absorb dome light, you also have a look at the particular of absorption are related to the height and the height of the screw proportion, to ensure the safety of the 200W led Flood light and lanterns can mount.
(if the screw length is shorter than the height of the particular of absorption can be equal to, can't install will appear).

3, other parts of the security:
After installation of the whole lamp, you can pick up the 200W led Flood light and lanterns, gently shake from left to right, when you observe other parts on the status of 200W led Flood light and lanterns again, whether there will be loose, no fixed phenomenon, if there is a drop down.

If yes, then this 200W led Flood light and lanterns has certain structure safe hidden trouble, you can according to their severity and then make a decision whether to purchase or purchase the whether return after.

Three, pay attention to electricity safety:
Regarding the electrical safety of 200W led Flood light and lanterns, professional testing department have special testing tools and methods, but the more far from us, just introduce some common sense and simple and feasible method.

1, the wire:

A, the thickness of wire: in square millimeters, consumers can see online logo, if no sign, can ask to the businessman.
B, the wire thickness and current intensity: in general 1 mm2 wires can carry 5 amperes of current intensity.
C, current intensity: I = P/U; Such as 60 w 200W led Flood light and lanterns, under 220 v voltage, the current = 60/220 = 0.28 A;

General 200W led Flood light and lanterns is 0.5/0.75 square millimeter commonly used wires, desk lamp, floor lamp of 1 mm2 wires, and the rubber sleeve; All wires to mark have GB/T5013-1997 or GB/T5013 - / 2008 is preferred.

2, lamp holder:
In general, a lighting 200W led Flood light and lanterns, in the relevant parts of the 200W led Flood light and lanterns have a larger quantity of heat, causing its temperature to rise. Common 200W led Flood light and lanterns, we usually require the lamp holder can withstand temperatures above 90 degrees, high heat dissipation for incandescent 200W led Flood light and lanterns, require the lamp holder can withstand the 120-150 degrees Celsius temperature.

If it is a plastic lamp holder, generally require the use of PBT material, if you don't trust, can test: placed in the microwave oven after the set temperature for 1 hour after take out observation.

3, the switch:
Switch requires the cut the wire of 200W led Flood light and lanterns, such as fuse, also can on the line of fire.

4, grounding:
200W led Flood light and lanterns is generally requires a grounding device, generally USES the yellow green line. No grounding device of 0 class is part of the 200W led Flood light and lanterns, since January 1, 2009 in our country has banned in domestic sales.

Four, appearance and details:

1, the overall feeling:
A, the overall harmony, tilt, asymmetry, have different color, texture and other abnormal phenomenon;
B, you of the other feeling, any wrong place? Your intuitive feel very important, at the same time is also very accurate.
2, the related technology of feeling:
A, electroplating: 1 have off color; 2 plating fastness (generally available tape test); 3 corrosion resistance (typically have a saltwater corrosion method); 4 material (gap, burrs, etc.);
B, drawing: 1 color; 2 direction consistency; 3 uniformity;
C, paint: 1 color; 2 uniformity; Blister, etc.;
3, spare parts:
A shape, size is almost the same, the same parts?
B, material with and without defects, whether can affect the function and use of 200W led Flood light and lanterns?